body { background: #fff; padding: 0; margin: 0;  font: bold 12px Arial, sans-serif; }
ul { padding: 10px; width: 606px; margin: 0; background: #eee; overflow: hidden; margin: 20px auto; }
ul li { width: 160px; margin: 10px; padding: 10px; float: left; background: #fff; display: block; border: 1px solid #ddd; }